Bump buildroot to 2020.11-rc1 (#985)

* Update buildroot-patches for 2020.11-rc1 buildroot

* Update buildroot to 2020.11-rc1

Signed-off-by: Stefan Agner <stefan@agner.ch>

* Don't rely on sfdisk --list-free output

The --list-free (-F) argument does not allow machine readable mode. And
it seems that the output format changes over time (different spacing,
using size postfixes instead of raw blocks).

Use sfdisk json output and calculate free partition space ourselfs. This
works for 2.35 and 2.36 and is more robust since we rely on output which
is meant for scripts to parse.

* Migrate defconfigs for Buildroot 2020.11-rc1

In particular, rename BR2_TARGET_UBOOT_BOOT_SCRIPT(_SOURCE) to
BR2_PACKAGE_HOST_UBOOT_TOOLS_BOOT_SCRIPT(_SOURCE).

* Rebase/remove systemd patches for systemd 246

* Drop apparmor/libapparmor from buildroot-external

* hassos-persists: use /run as directory for lockfiles

The U-Boot tools use /var/lock by default which is not created any more
by systemd by default (it is under tmpfiles legacy.conf, which we no
longer install).

* Disable systemd-update-done.service

The service is not suited for pure read-only systems. In particular the
service needs to be able to write a file in /etc and /var. Remove the
service. Note: This is a static service and cannot be removed using
systemd-preset.

* Disable apparmor.service for now

The service loads all default profiles. Some might actually cause
problems. E.g. the profile for ping seems not to match our setup for
/etc/resolv.conf:
[85503.634653] audit: type=1400 audit(1605286002.684:236): apparmor="DENIED" operation="open" profile="ping" name="/run/resolv.conf" pid=27585 comm="ping" requested_mask="r" denied_mask="r" fsuid=0 ouid=0

buildroot/package/libapparmor/3.0.0/0001-libapparmor-add-missing-include-for-socklen_t.patch

@@ -0,0 +1,35 @@
+From 47263a3a74d7973e7a54b17db6aa903701468ffd Mon Sep 17 00:00:00 2001
+From: Patrick Steinhardt <ps@pks.im>
+Date: Sat, 3 Oct 2020 20:37:55 +0200
+Subject: [PATCH] libapparmor: add missing include for `socklen_t`
+
+While `include/sys/apparmor.h` makes use of `socklen_t`, it doesn't
+include the `<sys/socket.h>` header to make its declaration available.
+While this works on systems using glibc via transitive includes, it
+breaks compilation on musl libc.
+
+Fix the issue by including the header.
+
+Signed-off-by: Patrick Steinhardt <ps@pks.im>
+[Retrieved from:
+https://gitlab.com/apparmor/apparmor/-/commit/47263a3a74d7973e7a54b17db6aa903701468ffd]
+Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
+---
+ libraries/libapparmor/include/sys/apparmor.h | 1 +
+ 1 file changed, 1 insertion(+)
+
+diff --git a/libraries/libapparmor/include/sys/apparmor.h b/libraries/libapparmor/include/sys/apparmor.h
+index 32892d065..d70eff947 100644
+--- a/libraries/libapparmor/include/sys/apparmor.h
++++ b/libraries/libapparmor/include/sys/apparmor.h
+@@ -21,6 +21,7 @@
+ #include <stdbool.h>
+ #include <stdint.h>
+ #include <unistd.h>
++#include <sys/socket.h>
+ #include <sys/types.h>
+ 
+ #ifdef __cplusplus
+-- 
+GitLab
+

buildroot/package/libapparmor/3.0.0/0002-parser-Makefile-dont-force-host-cpp-to-detect-reallocarray.patch

@@ -0,0 +1,37 @@
+From 0dbcbee70097ecde66708064ec1dedfa64e581e8 Mon Sep 17 00:00:00 2001
+From: Armin Kuster <akuster@mvista.com>
+Date: Wed, 7 Oct 2020 20:50:38 -0700
+Subject: [PATCH] parser/Makefile: dont force host cpp to detect reallocarray
+
+In cross build environments, using the hosts cpp gives incorrect
+detection of reallocarray. Change cpp to a variable.
+
+fixes:
+parser_misc.c: In function 'int capable_add_cap(const char*, int, unsigned int, capability_flags)':
+| parser_misc.c:297:37: error: 'reallocarray' was not declared in this scope
+|   297 |   tmp = (struct capability_table *) reallocarray(cap_table, sizeof(struct capability_table), cap_table_size+1);
+
+Signed-off-by: Armin Kuster <akuster808@gmail.com>
+[Retrieved from:
+https://gitlab.com/ffontaine/apparmor/-/commit/0dbcbee70097ecde66708064ec1dedfa64e581e8]
+Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
+---
+ parser/Makefile | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/parser/Makefile b/parser/Makefile
+index acef3d77a..8250ac451 100644
+--- a/parser/Makefile
++++ b/parser/Makefile
+@@ -54,7 +54,7 @@ endif
+ CPPFLAGS += -D_GNU_SOURCE
+ 
+ STDLIB_INCLUDE:="\#include <stdlib.h>"
+-HAVE_REALLOCARRAY:=$(shell echo $(STDLIB_INCLUDE) | cpp ${CPPFLAGS} | grep -q reallocarray && echo true)
++HAVE_REALLOCARRAY:=$(shell echo $(STDLIB_INCLUDE) | ${CPP} ${CPPFLAGS} | grep -q reallocarray && echo true)
+ 
+ WARNINGS = -Wall
+ CXX_WARNINGS = ${WARNINGS} ${EXTRA_WARNINGS}
+-- 
+GitLab
+

buildroot/package/libapparmor/3.0.0/0003-aa_status-Fix-build-issue-with-musl.patch

@@ -0,0 +1,33 @@
+From a2a0d14b9c5046b76124c828a53b0e9cbc1bc5c8 Mon Sep 17 00:00:00 2001
+From: Armin Kuster <akuster808@gmail.com>
+Date: Wed, 7 Oct 2020 08:27:11 -0700
+Subject: [PATCH] aa_status: Fix build issue with musl
+
+add limits.h
+
+aa_status.c:269:22: error: 'PATH_MAX' undeclared (first use in this function); did you mean 'AF_MAX'?
+|   269 |    real_exe = calloc(PATH_MAX + 1, sizeof(char));
+
+Signed-off-by: Armin Kuster <akuster808@gmail.com>
+[Retrieved from:
+https://gitlab.com/apparmor/apparmor/-/commit/a2a0d14b9c5046b76124c828a53b0e9cbc1bc5c8]
+Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
+---
+ binutils/aa_status.c | 1 +
+ 1 file changed, 1 insertion(+)
+
+diff --git a/binutils/aa_status.c b/binutils/aa_status.c
+index 78b034090..41f1954e9 100644
+--- a/binutils/aa_status.c
++++ b/binutils/aa_status.c
+@@ -10,6 +10,7 @@
+ #include <stdio.h>
+ #include <stdlib.h>
+ #include <string.h>
++#include <limits.h>
+ #include <sys/types.h>
+ #include <sys/stat.h>
+ #include <sys/wait.h>
+-- 
+GitLab
+